Besiktas have emerged as favourites to sign Arsenal goalkeeper David Ospina and finally they agreed personal terms with the Colombian international.
Now the 29-year-old is free to leave Arsenal following £19m signing of Bernd Leno from Bayer Leverkusen in June.
According to reports, Besiktas have agreed an initial loan move with Arsenal.
There is no rush to complete a deal as Turkish clubs are free to sign players up until August 31.